الفهرس 
REVIEW OF LITERATUREOnly 14 pages are availabe for public view
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Abstract
This study was canied out during the two successive seasons
of 1995 and 1996 at the Faculty of Agriculture, Ain Shams University to improve the chances of
success of explant cuttings by influencing their rooting ability and/ or capacity in Cassia nodosa
L, Bougainvillea bullwna ”Mrs. Butt”, Clerodendrum splendens Don., Jasminum sambac Soland. and
Pittosporum tobira Ait. using several practices applied to the cuttings them selves (viz.
centrifugation, wounding and dipping in IBA) in addition to treatments applied to the mother plants
(viz. girdling, banding and growth regulator spraying with IBA or ETH (restricted only to
Pittosporum tobira and Jasminum samhac)].
Cassia nodosa cuttings failed to root. Centrifugation alone did not increase rooting except in
Bougainvillea buttiana ”Mrs. Butt’” and Jasminum sambac where it caused increases in both PRC and
NR/C in the fonner species and heavier FWR/C and DWR/C in the latter species . Both banding and
girdling had no positive effect on rooting. whereas wounding alone led to increase PRC, NR/C,
LR/C, FWR/C and DWR/C in Clerodendrum sp/endens and only NR/C in Bougaim·i//ea buttiana ”Mrs.
Butt”. When cutting were treated with IBA plus wounding, rooting increased in most parameters
111 Bougamvillea buttiana ”Mrs. Butt” and Clerodendrum splendens. Mother plants spraying
with IBA at 250 or 500 ppm plus clipping the taken cuttings in IBA gave an increase
in FWRJC in Jasminum sambac. Meanwhile, when Eth was sprayed at 50 and /or I 00 ppm on mother
plants of the same species (Jasminum sambac) increments were obtained in PRC, NR/C, LR/C, FWR/C
and DWR/C. As for Pittosporum tobira, spraying with either plant growth regulators on mother plants
had no positive effect whatsoever on the rooting of its cuttings
A high level of TP was found in the bases of cuttings in Cassia nodosa which might
explain why they failed to root . Ln contrast, a high level of TI was found
inside the bases of Bougainvillea cuttings due to dipping of cuttings in !BA which
might explain the increase in NRJC and in both FWR/C and DWRJC for both 1995 and 1996
seasons. The same was found in Clerodendrum sp/endens as a result of wounding of
cuttings plus dipping in IBA .